![]() ![]() ![]() The meshing sequence contains a global Size node, two Free Triangular nodes, and one local Size node. To specify the finer mesh size, we add a local Size node to the second Free Triangular node and specify the predefined size Extra fine. Read further about using local and global Size nodes in the Using Meshing Sequences tutorial model (especially page 10 of the PDF documentation). Next, we set the global Size node to the predefined value Extra coarse, because it’s recommended to specify the coarsest mesh size in the first global Size node. In the first Free Triangular node, we select the left domain, and in the second node, we select the right domain (as shown in the image below). We construct our meshing sequence by creating two Free Triangular nodes. This might be because the material demands it or because of the physics we plan to study. In the right square, we would like to have a finer mesh. Let’s say that we have two neighboring squares in 2D that we would like to study. Choosing the Order of Your Meshing Sequence Operationsįirst, we will illustrate that the meshing sequence is order dependent. By studying a few examples, let’s sort out what these effects are and how you can use them to your advantage. In addition to specifying size parameters, the way you structure your meshing sequence will also affect the resulting mesh. When an unstructured mesh is generated, both element quality and the specified size parameters are taken into account in order to achieve a mesh optimized for computations in the COMSOL Multiphysics® software. One significant characteristic of the unstructured operations is that they can mesh any geometry, whereas the structured operations require geometries that fulfill certain criteria. The structured operations are Mapped and Swept, generating structured meshes, and the unstructured operations are Free Triangular, Free Quad, and Free Tetrahedral, generating unstructured meshes. There are two categories of meshing operations: structured and unstructured. You will gain insight into how the meshing operations behave when they are applied in a sequence. Have you ever wondered about the best practices for structuring your meshing sequence? For instance, is there a difference between meshing domains in separate operation nodes and meshing them together using a single operation? In this blog post, we will discuss different ways of structuring your meshing sequence and how they affect the resulting mesh. ![]()
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